There is only 1 original artwork but many prints can be sold of the same artwork.
An original painting/drawing is the unique artwork made with original materials : artist paint, canvas, pencil, etc.
A print is a reproduction of the original artwork using a professional artist scanner or photograph to make the artwork available to a wider audience. While the original artwork has a unique price and size, a print offers an additional option for art collectors to purchase the same artwork at a different price bracket.